1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd823a940e04c5f5b438a201b3c8fc3d3b3f33ef56a432bc1823398e82a06c08a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/86994a30-7969-437b-9e32-62a410e247eb.json and https://artists.proofprofile.net/proofs/artist/86994a30-7969-437b-9e32-62a410e247eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d7c8bca1bcb09233b34e019cf9cfb6753af2248c123a3ef79283cb606c40e6. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD52420097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2319291a042b51c6a87db7a67da0c801f8d0057482ace48e59ed668de0eade. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:38:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD52420098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa9b0b1c79f5a4ec3edafb698c091c014be9f9c748aa7ddc6f7423d05b94402. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD52420099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c8b4cc0677a4a2724e5ad600900c51d3fbe555fcfe418f1dd5143710436b8f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:10:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD52420100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7f51d5d8050d214f2e9ace47eda430b19c2076ed15b8da308ecd7c6420e1b3. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD52420101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39f1eb203d5ba8be1baf77da35ef62b51e3ef591d61cce559bd0a91a4c3ab1f. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T21:00:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ62047398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d944e04bbe5f4e333c4efe0e48c357e03c1d3a0ad6d608f9bbe1a1e26df782. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRGDT0400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e0eef1b67815134520006dd19329d05da18b31fc6eb624284bce456a98f9fa. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRGDT0400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8d875d50997df9879d454c5830352b01bb6f071acf7934f53ac3caf8be1a9b. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRBMG7100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e95e4c77bb740d5cb2a91444c596086ecbad9b5c77af03f421be4c1b3352b8b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRBMG7100133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8565f4ae3712fddf2e7a469843434ca1a853bb9a9c2959994d1462158d1e7265. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRBMG7000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb253a2c85defdc81efeff33afd9ccc1f7d04615a54583c738637d41e1bcf23. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRBMG7000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8136adafbe6e0938a96424ad043b7c3d62bc4e3a8bff18b9d26a1b81f2fe207d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:53:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRBMG7100136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cb4f6db14e2fbb037348aa201f5050e2a169f96aa083a3205b3027b5317ccb. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRMVP0200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4bf720cfbadaf00e83b4c170723916c110c2aed67bf233ee1f3b0dfb87c37a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRGDT0200383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf25e85ffd164e66893e33e246d3d46d3d7b5efc24c987f1d809234364318c03. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:27:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRGDT0200372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb981325c0e6822baa9d82a3aaa0f6a87ce6cce14c4e865de5fbf1b7f3384cab4. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRGDT0200379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abb7cfc76101d1fe53a9966308ee2a55a1eb2fc76d05e44acfe1953c0a86b4c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRGDT0200381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe858808ca3622e092fe8bca4fe20fa483554596e65236597acc34fe2966c0707. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRAPI0201003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd111c52b4e9209a2e735f791e1daa053203a3d27505c3ba85ebcdbc752b82c. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRAPI0201020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a7741c5cfd64ff6d3b28f29182a5b917e826b128f0da7a0cfdc1ac67be5e8b. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRAPI0301028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf874143dad3a9ba9818bb3dc314f2eac45824f72a89320409b8c3f2f23fd41. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:01:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRMVP0400505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e744062dc9adcfb6d42e4873f13350c2d23fb61b1c660e48db7cae2e3a60caa. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRMVP0400508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca481ef9210078f6a09a12ee489a124ca57b3b0f2a80ca6d1ecaef79444bcb55. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRMVP0400513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccc51bfa77e65470fdc765a7164798f8b9e9741b1a0c823064f541def1aceff. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRMVP0400514.
Rainha do Paraná - 80 Anos de Música Sertaneja
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a08e112337413f425369e66b7f732bdfe07b9d858ee0ef0ed1f4cb472ee0f7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRACP0300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df224cb731c0fcd71bdd560b3285a71960c853e9da8d12f8a7dfcafa4f45201. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRACP0300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0073bca9ddf984122db4d83876f1b46619f3886cf2d6f10a823ef0a3f69035a5. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRACP0300074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c1fc2124d3a4d0a924c9da28d5d68035e02cf2b0d8287ac894adfc7ac2bde9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRACP0300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6add7fe788e1dfccb6f4cc6ff25e550a4a497ca1207b8a0cb12f85255e09685e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRACP0300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b57705effd2f1fcf494d250d3bfa98c6e9da09ea68b6eba7c473f2348e23e0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRAPI1300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc5532036b5c01131d614be91f596b691484c03649408e16ebe1033d7b51220. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRAPI1300153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb089b3bf36123cff154df4a04928702038e5bd7f72be1e6b21e29e0136fec9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRAPI1300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de4f6b59fa7e013668bbebc5bf6445ce58eed496ea58f24eef87d6bc13c2770. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1948076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac02f69f4f92437ca14a615b8c037c18f5a26444071a63900e09c7131401258. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1948078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382a95475d728bbbff7ec0090b00756256b575e41cf89f218153ee9435995dd9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1948083.
Adeus Minha Terra: Só Moda de Viola, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a11670c96723536c42d20428fa349203ade2e05d9dfc5c181c7ba7996a0971d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1948026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa351e987e11c8fa6f9fd4362caabf144b24268b143024bb00ba591527c51b76b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1948031.
Jeitão de Caipira: Só Moda de Viola, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d7cfbbd615dff689a9b9c0b6c9c73d267124c6dae2c2a513e433af87a7be0c. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1948017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb2a347e21ec6b3eb427a5cc9bddfa09caa9813e72e82e85d34c005bb34bc87. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1948056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766a2ca839bc15f8b3e87c36848730476b18e5398c09ba8c5406e411bfbdc101. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1948058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b289963a52e89883297538a4d8eb94f35f908ba5efb616fbe164bf258a74bab. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1948062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1324e17f9e31b96aa856abef8644897890ec05a336d46a0eb27f37d3d7d27e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1948032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfe1d0c7445463ad3e168b84967ec3aaa0f6619d77aa478b93686c12a77373a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1948037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6060cc99b3bb6e4692a4ecf5293185edcb03439c5cefd6f9fcdf17849ba4487f. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1948038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ca568d9d0f84c52a451352086c95045b3fee0066434a922d648b0cdc79de46. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201727667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46e2f661554bb3a026459da795e837eeaf9c87daf2a7075d51b7518e89c2086. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201727673.
Pra tudo se dá jeito (Participação especial de Liu & Léu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48524dc28b5c3385c46ee9ab6df9326b4a3e29b5b990cf8cdb132837735c81b7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB0300352.
70 Anos de Melhor Música Sertaneja - Vol 02
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66e5f8e56a46327b5176d7dc3334a9ea6a294c5e86289e3f800c16af503fcc7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9600259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058c64047b5af01a9095407e3113fc0fda8cbd4acf2bec90eef306e1b0021d9f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRAPI0201000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ab26efbf78a2bd505f67646093215870f36b6e7aa02f4f00e43fe770a77728. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRAPI0201002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b5a4c40184bd63d3358587567d7a11264e0b2ac4052e45b1e03058e2d11a43. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB0000317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66e5f8e56a46327b5176d7dc3334a9ea6a294c5e86289e3f800c16af503fcc7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9600259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe048576c09de947c9307a2891088612efde00aee0cb709725c91cdb7c2806f50. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB0000315.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07cc1cee09fcf2c5abd84c904ccdcfd5fa5f49b1139c1f17b7fd483578cc0c9d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB9704985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bcdc55542fcb1d50d99d3c394fc427a13bad1639599f9512928ae608fbdc97. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB0000314.